Meatball could control his weight and Pepper seemed to have the ability to teleport. Thinking of those, the babies eating soft foods a little earlier seemed to be the least of their concerns.
These were unique and dangerous powers and when they told the hired aborigines—who were under oath—they were all shocked, all unaware of what was happening.
Not only were the powers unheard of, but they were being exhibited by babies!
Generally speaking, powers were only exhibited after Level 10. Even if a rich family trained their kids and let them get last kills to get them to level up early, their bodies usually weren't strong enough to support the level and they fell ill even before they reached level 9.
It was the primary reason why the bulk of the training kids get—at least those that give experience—was after 12, which was after the aborigine pubescence age. For Terran children, if the requirements were the same, then the age would be 13 to 14.
